10! seconds is exactly 6 weeks, unless there are leap seconds, or changes for Summer time. But yes, other than that, exactly 6 weeks.

@ColinTheMathmo My revelation of the day, thanks!

I'll make sure to always say that fact when I introduce factorials, it helps understand how fast it grows!

A Mastodon instance for maths people. The kind of people who make $\pi z^2 \times a$ jokes.

Use $ and $ for inline LaTeX, and $ and $ for display mode.